Scientifically Balanced Spirulina Flakes are ideal for both freshwater and marine fish. Spirulina will enhance the color, stimulate the immune system and ensure better growth with less body fat. Spirulina contains the most remarkable concentration and combination of nutrients in any food, plant, grain or herb. Spirulina is blue-green algae rich in raw protein, contains seven major vitamins – including B12, color-enhancing pigments, beneficial minerals, amino acids and essential fatty acids required for complete nutrition. It helps support coloration and will help maintain health and vitality. Feed 3 – 4 times per day as much as your fish will eat in 2 – 3 minutes.